Type-printing-telegraph apparatus.



G. A. M. AGRELL.

TYPE PRINTING TELPGRAPH APPARATUS.

APPLICATION FILED JAN. 8, 190B.

Patented Nov. 3, 1908.

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@i P 1 ,1 i l. z ,P la m m Fia. 5. 'Fie-Lk and each contain avrespectively of the saine type as the disk 13,

parrain sri-tries learner ernten.

GUSTAF MAURITZ AGRELL, OF'STOCKHOLM, SWEDEN 'rrrE-rarn'rrnehrntneaarnnrrnne'rns.

No. 'coef/ae.

Specification of Letters Patent.

. Patented Nov. 8, 1908. p

Application led January 8, 1908. Serial No. 409,765.

--ei'ate with a movable type wheel and are adapted preferably to converttelegraph signs into types on a strip or sheet of paper:

by means of electric impulses rof different force or polarity.

The object of the-invention is to provide means for moving the saidVtype wheel to the printing position and then to a certain startinf;position, after the type has'been printed.

The invention is illustrated in the accompanying drawing.

Figure 1 shows partly in a side view and partlyT in section the means'for operating the typel wheel. type wheel, several electro magnets,rela-ys and electric connections belonging to the ap paratus. Fig. 2shows the printing wheel and the operating disks in an evolved state.Fig, 3 is a side view of the catching mechanism of the apparatus. Fig. 4is a section and Fig. 5 a side view ot another form of the disks -bymeans of which the type wheel is operated. Fig. 6 shows three operatingdisks in an evolved state.

On a shaft 4, journaled iii the traine 5 vof the' apparatus and rotatedcontinually by a spring, an electric motor or the like in the directionindicated by the arrow ai, a tube 6 is threaded, .to which are fixed thetype wheel 7,.a star-wheel 8 and a disk ln the right hand side of thesaid disk 3 a recess is provided, contain-ing a friction disk 13, which1 by a pin 9, xed in the shaft 4 and engaging the disk 13, is caused'torotate with'the shaft. The friction disk 13 is slidable onfthe shaft andforced against the disk 3 by means, described below, and consequentlytends to t the right hand side ci the friction disk 13 two disks 2l and1, which are provided with teeth on their peripheral surfaces frictiondisk 12 and"11 5.0 brinwithitthe said disk and the type wheel aremounted on the shaft 4 in a slidable inan- The'said yligure also showsthe l rotary i the ordinary type hand side of the disks 1 and 2 the typewheelner but caused to rotate with the same. 'spiral spring 10, mountedon the shaft 4, acts against the disk 11 and forces the disks 11, 1,12,2, 13 and 3 against each other. The pressure of the spring 10 can beadjusted by a nut 14 and a jam nut 15, screw threaded on the shaft 4.Vik ring 38, fixed on the shalt, prevents the type wheel and the saiddisks from moving-toward'the left. Pins 16 and 17 project from the leftside of the disks 1 and 2 respectively and coperate with pins 18 and 19,projecting from the right side of the disks 2 and 3 respectively` insuch manner, that, if for instance the disk 1 is stopped in a certainposit-ion, by the catch mechanism described below, the disk 2 can berotated l only until the pin 18 strikes the'pin 16, and

the disk 3, until the pin 19'strikes the pin 1( Consequently, the typewheel occupies a certain' position with` relation to the disk 1 and if'the disk 1 is permitted to rotate `for a certain distance, .the typewheel will rotatethe same distance. iii', instead ofthe disk 1,the disk.2 is stopped,l by the said catch mechanism, the type wheel will,evidently, be del pendent of the disk 2 asl for the rotary move-v ment,whereas the free disk 1 continues in its movement, until it is stoppedin a position, nearly coinciding with its starting position, in themanner stated below.

The disks 1 and 2 are shown in Fig. 2 in an evolved' state and in thestarting position, with relation to each other.` The' disk 2 is twice aswide 'as the disk -1 and provided located, that it with two rows ofteeth, so one of the rows is thought moved side wise, so that its teethenter the spaces between the teeth ot the other row and the teeth formonly one row together, a toothed wheel of is gained. At' the left.

7 is shown also in .an evolved state. .Each of the types of the saidwheel' is located opposite to thetooth of the disk 2, which finallydetermines the position, which the type wheel occupies, as thecorresponding sign is to be printed. Consequently, if for instance theletter'N is to be printed, the disks 1,. 2

and the ty ne wheel 7 must be permitted to 1 rotate, so t at the tooth25 is stopped, which is ei'ected by the catchingmechanism, which, as thedisks are in the starting position, engages the starting tooth i 20, butcan be moved side wise, so that it cooperates with` the dii'erent rowsof teeth.

vIn order to illustrate the manner in which CIT the catching mechanismcooperates with the disks 1 and. 2,- one may think that the surfaces ofthe said disks and the type wheel `are located in a stationary plane andthat the catching mechanism can be moved from the tooth in twodirections indicated by .the arrows g/ and e .in Fig. 2, a'. e., partlyfrom row to row, partly in each row from tooth to tooth, and vtliatthespotbn the paper, on which the sign is to be printed,

moves with the catching mechanism, when moved t'rom tooth to tooth inthe same row. Each movement of the catching mechanism side 'wise iseffected by emittingv from a transmitting apparatus one kind of impulsesas for instance-H50 volts) and cach movement of the mechanism from toothto vtooth of thc rows respectively by the emitting of another kind ofimpulses (as for instance +50 volts). In order that the` sum of the ysaid impulses may be Aas small as possible,

they may for the present case be. so c0in the catching mechanism isalways moved iny Ythe direction last mentioned, as soon as vit cobis'mov'ed fromthe rightrow to the left one onl the Adisk 2. "As thelspot on the paper', on whichthe letter is to be printed, has fol lowedthe catchingl mechanism, when moved in the direction indicated by thearrows, it will, consequently, now be opposite the letter N,Aand byemitting a thirdy kind. of impulses (as for-instance "150" volts) a copyo the letter N on the paper is eft'ectedI at first, other operationsbeing then also effected.

If the letter g/ is to be printed, vthe catching mechanism is moved fromthe tooth 20 to the teeth 26, 27, 28, 29 and 30, and so on. The saidcatching mechanism preferably consists of two rods `or catches 31, 32,Figs. 1 and 3, slidably mounted in a slide 33. As

an electro magnet 68 is energized, it at-V tracts its armature tiXed ona lever 34, which is pivoted at 36 to the frame of vthe -apparatus andis acted uponin the opposite direction of a spring 34X; The said lever34 is by a pin 341 passing through a notch in' the rod 31, connectedwith the said rod, so that the'latteris pushed into one of the spacesbetween the teeth of the disks 1 and 2 respectively. The other rod 32 isacted upon y a two armed lever 35 which is pivoted at 37 to the frame of,the apparatus and by a pin 351 engages a notch in the rod. The saidlever 35 is ,by a slot provided inthe same and a pin 35X fixed in thelever 34 con` nected with the latter, so that the rod 32 is withdrawnfrom the teeth of the disks 1 and 2 respectively, when the rod 31 islowered' into engagement withI the same. Owing to the said reciprocalaction of the catching rods 31, 32 the disks 1 and 2 will be rotatedthrough a greater or shorter distance deprovidedon the upper side of theslide 33,v

as the armature is attracted, so that, as the said armature is released,the slidev 33 is moved' one tooth toward the left by the `spring 41". Acatch 45, pivoted at 46 to thev frame of the apparatus, prevents theslide 33 from moving with the catch 43, when the same, returned to itsoriginal position, slides over the tooth 3311.` As the slide 33 is movedend wise one or-two teeth, the rods 31 and 32 are also moved in the samedirection by the slide and, consequently, are

brought to coperate withthe iirst or second row of teeth on the disk 2.

As an electro magnet 47 is energized and attracts its armature againstthe action of a spring 47X, the arm 481 of a three armed lever 48, 481,4811, pivoted at 48 to the frame of theapparatus, is swung upward.v Thesaid arm 481 is provided with a tooth 49 and a head 50, acting like ahammer. As thel arm 48 is swung upward, the said tooth engages tliestar-wheel 8` and holds the type,

wheel 7 in its position, whereupon the hammer 50 forces the paper aagainst the type,

provided with ink in any suitable manner, v

so that a copy of the. said type is gained. At the same 4time thevertical arm 4811 is swung toward the'right. During the said movementthe tip of thearm 48l1 acts upon cam shaped projections 52, 53 on thelower sides of the catches 43, 45 and raises the said catches, so thatthey are brought out of engagement with the slide 33. The arm 48l1 thenmoves the slide toward the right, so that the rods 31 and 32 will againcooperate withv the disk 1.

TheA slide 33 has a projection 54, which extends along the slide and, asthe slide is moved toward the left from .the position shown in thedrawing, is placed in the path of an arm 55, projecting from the rightside 'of the disk 1, so that the said disk,.disen waged from the rods 31and 32, as the same are moved side wise can rotate only until the arm 55strikes against the projection 54. The disk l has-then been rotatednearly to its starting position, so that, when the slide is forcedbackward toward the right and,

tion 54 for such a distance that i inoperative.

consequently, the projection 54 ceases to hold the disk 1, the latter isrotated, until the "starting tooth7 20 strikes against the rod 82. Thearm 55 then passes Aby the projecvt is out of the path ot the same. Asthe rods 81 and 32 are moved from the disk 2 to the disk 1, the disk 2is disengaged and, consequently is rotated, until the pin 18 vstrikesagainst the ,pin 16.. Also the' disk 2 has then been rotated to itsstarting position. l

As the impulse of -150 volts'is interrupted, the armature of the electromagnet 47 and the lever 48, 481, 4811 return to their y' normal.positions, so that the hammer 50 is moved from thetype-whee'l 7. rllhepaper a is then fed a suitable distance and the tooth 49 disengaged fromthe star-wheel 8, so that also the type-Wheel and the disk 3 ean rotateto their starting position, i. e. until the pin 19 strikes against thepin 17. 'llhe arm 4811 is at the same timefswung toward the left, sothat the catches 43 and 45, made free, fall down on the slide 33.Consequently, the apparatus is now again-ready for eecting vthe printingof the next sign.

The electro-magnets 40, 47 and 68 may be energized by the current of alocal battery 56 by the armatures 57 and 58 of two line relays 59 and60, caused to shiftiposition-by' the action of the linecurrent. Therelay 59 is so polarized, that negative currents force the tongue piece61, to which the armature 57 is fixed.4 against a contact piece 62, andpositive. currents force the said tongue piece against contact pieces 6?and 64. The relay 60 is unpolarized and the armature of the same is heldin the normal position, shown in the drawing, by a spring 65, thetension of which is so adjusted, that the electro magnet, when energizedby acurrent of 50 volt-s, docs not attract the armature, but thearmatureis attracted only when a current of 150 volts, either +150 or +V.150,passes through the electro magnet. Owingto the said arrangement thearmature or v against a contact piece 66, when the tension of the lingecurrent is50 volts and against ay contact piece 67 when the tension ofthe said current 150 volts. 1f Jfor the energizing of the said threelocal electro-magnets currents of +50 +150 and +150 volts are used, asstated before, impulses of 50 volts are preferably usedV for returningthe armature 57 of the r larized relay 59 to its normal position,

fill up the intervals between the impulses of +50, +150 auth- 150 volts.Consequently, if an impulse of 50 volts is emitted from a transmittingapparatus, the armatures of the relays and 60 loccupy the positionsshown in the drawing/"and 'all electro-magnets are /t an impulse, of +50volts passes through the relays, only the relay to the battery. It,finally,

. the contact piece vback to the battery.

which armatures are' tongue piece o8 bearsv and, thus, the said impulsesm da the current 59 is lcaused to operate and 56 through passes 'fromthe local battery the tongue piece the electro-magnet 628, the co'ntactpiece 66 and the tongue piece 58 back to the battery. 1f the linecurrent is of +150 Volts, both the relays `are caused 'to operate andthe current passes'` from the local battery 56 through the tongue piece61, the contact piece 64, the electro-magnet 40, the contact piece 67and the tongue piece v58 back the linecurrent is of +150 volts, only therelay 60 iscaused to operate and the current passes local battery 56through the tongue piece 61, the contact piece 62, the electro-magnet47, 67 and the tongue piece 58 1n the form of the type wheel operatingdisks shown in Figs. 4 and 5 each ofthe said disks is acted upon byvacoil spring 69, 691 respectively only -tWodisks 70, 701 being shown. @neend of the `spring 69is fixed to the disk 70, corresponding to the diskl in Fig'. 1, by means of a screw 71, the other end of the said springbeing fixed to the shaft 4 by'means of a 'screw 79.. The spring 691\isfixed to the disk 701 and the shafts: in the same manner. As the saidshaft 4 is rotated by a motor for instance, connected with the shaft byafriction clutch (the saidmotor and clutch being not shown inthedrawing), the tension of the springs is increasedv and, when increasedto a certain degree, 'it overcomes the friction between the members otthe clutch, so that the shaft 4 is stopped and remains stationary untilthe tension of one of the springs is decreased at the momentarydisengagement of. the corresponding disk. The said disk will ,then berotated by the spring. The disks are stopped in their rotary movement`by meansof teeth 7 8 on their periphery and a catching mechanism, whichmay be constructed shown in Fig. 1. 7 4 is an arm correspondingto thearm 55 in Fig. 1. Thedisks 70, 701 are ln'ovided with projections 75, 76coperati-ng in the same manner as the projections 16 and 18 in Fig. 1.The numberof the type vwheel operating disks may be varied and isdependent upon the greatest number ot impulses for moving the catchingmechanism side wise, which may be used in the different combinations ofcurrents. Fig. 6 shows the most suitable grouping of the teeth on threedisks (the central disk being provided With two rows of teeth), whendecided that three impulses at most may be used' Jfor moving thecatchingmech anism side wise and the snm of impulses of each combinationmay not be greater than\ 61 the contact piece 63,y

from the' erating disk, having ing positions rby means of a small number,of impulses. A further advantage consists in the apparatus being ableto operate with great speed, owingto the fact that each opfunctionated,is at once moved to its starting position, so that, as a sign has beenprinted, the operating mechanism is at once ready'to move the type Wheelto the position necessary for the printing of thevnext sign.

Having now I claim as new ters Patent is:

1. ln' an electric type printing apparatus the combination with themovabley type wheel of a 'number of the said wheel operating members,rotatablewith relation to each and desire to secure by Let- `other andlocated at the side of'each other, a 'catching mechanism, whichcoperates with the said members and through the effecting of a relativemovement between the mechanism and the members longitudinally to theaxis of the members is caused to cooperate with each ofthe members,means for transmitting themovement of one of the outermost members of,the row to the type Wheel, and means connecting the members in suchmanner that, when one of the members is stopped, the member or members,which a d located at one side of the stopped member, remain in theirposition'with relation to the stopped member, but the member'or themembers, whichl are located at the .opposite side of thev stoppedmember, are independent of the same, so thatv they occupy their startingposition. v

2.- In ari-electric type printing" apparatus the combination with themovable type wheel of a number of the said wheel operating members,rotatable with relation to each other and located at the side of eachother, a catching mechanism, .which copeiates with the said members andthrough the efecting of a relative movement between the mechanism andthe members longitudinally to the axis of the members lis caused tocoperate with each of the members, means for transmitting t e movementof one of the outermost members of the row to the type wheel, meansconnecting the members in such man* ner that when one of the members isstopped, the member or members, which are located at one side of thestopped member, remain in their position with relation to the stoppeddescribed my invention, what 'just coperating with the same, ispermitted to rotate.

3. In an electric type printing apparatus the combination with themovable type wheel of a number of the said wheel operating disks,loosely mounted on a rotating shaft and provided with teeth on theirperipheral surface, friction disks mounted between-the said disks andslidable on the shaft longitudinally to the same, means for causing thefriction disks to rotate with the shaft, means for keeping all the disksin frictional'contact with each other,v a catching mechanism, means for.moving the same into positions to coperate with thefoperating disksrespectively, means for transmitting the movement of one of theoutermost members of the row to operating projections on thesaidoperating disks, substantially as described and for the purpose setforth. A l

In an electrictype printing apparatus the combination with the movabletype Wheel of a number of the said wheel operating disks,loosely'mounted on a rotating shaft and provided with teeth 'on vtheirperipheral surface, coil-springs connected with the shaft and the disksrespectively, a catching mechanism, means for moving thc same intopositions to' cooperate with thc operating -disks -respectively, meansfor transmitting the movement of one of the outermost members of the rowto the type wheel, and coperating projections on Ithe said operatingdisks, substantially as described and for the purpose set forth.

In witness whereof, I have hereunto signed my name in the presence oftwo subscribing witnesses.

GUSTAF AXEL lviAUltlTZ AGRELL.

Witnesses CARL Fiamme., HJALMAR ZETTERSTROM.

the type wheel, andv co--

